Hey there Vero - I am just now starting back on P90X - did it a couple rounds way back when, but been slacking and enjoying life the last few years a little too much ( I home brew and study beers/beer making lol).
Fortunately for me - my girlfriend is one of those IronMan Triathletes. I will be moving out east to be with her inn the Spring so I am getting my butt back in shape. I used to be a coach for beach body until our office moved and I no longer had time (200 mile round trip commute) but as the company is closing and I am now among the unemployed - I do have time

Gotta make some lemonade out of that particular lemon so I am gonna whip myself back in to shape and work on my writing at the same time.
Let me know when you are ready to roll. If you made it thru insanity you are definitely in shape, not too much more in the way of equipment required but there are some minor things you need for p90x - if you got those, let's push play.
Cheers
jeff